I'd like to submit a newLISP bundle to the central mainframe... Are there instructions anywhere on how to do it? (I downloaded subversion so that might be a necessary first step.)
You can either submit it to the dev list: textmate- dev@lists.macromates.com or you can request a svn account from allan if you'd like to be able to update it. For the account you'll have to wait a few days as allan is currently at WWDC.